Home / LED Components (Korean) / YS31M-424 Mega Sign LED Controller Replacement View cart “YJMicro YP344SN Tri Color LED Sign Controller” has been added to your cart. YS31M-424 Mega Sign LED Controller Replacement$299.99 Available on backorder YS31M-424 Mega Sign LED Controller Replacement quantity Add to cart Category: LED Components (Korean) Brand: YJMicro Related products YRF11M Megasign LED Controller $299.99 Add to cart YJMicro YP344SN Tri Color LED Sign Controller $219.00 Add to cart Tri Color LED Controller Upgrade (Ethernet + Serial + USB Port) $399.00 Add to cart YJMicro YPF42GN16 Full Color LED Controller $299.99 Add to cart